(VBScript) Subject Alternative Name

Demonstrates the usage of the SubjectAlternativeName property to get the certificate SAN (subject alternative name) as XML.

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Dim fso, outFile
Set fso = CreateObject("Scripting.FileSystemObject")
'Create a Unicode (utf-16) output text file.
Set outFile = fso.CreateTextFile("output.txt", True, True)

' Note: Not all certificates contain a Subject Alternative Name.
' If it does not, the SubjectAlternativeName property will contain the empty string.

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Cert")
set cert = CreateObject("Chilkat.Cert")

success = cert.LoadFromFile("qa_data/certs/testIcpBrasil.cer")
If (success = 0) Then
    outFile.WriteLine(cert.LastErrorText)
    WScript.Quit
End If

subjectAltNameXml = cert.SubjectAlternativeName

outFile.WriteLine(subjectAltNameXml)

' Here's a sample of the subjectAltNameXml:

' <?xml version="1.0" encoding="utf-8"?>
' <SubjectAltName>
'     <name type="oid" oid="2.16.76.1.3.4">...</name>
'     <name type="oid" oid="2.16.76.1.3.2">...</name>
'     <name type="oid" oid="2.16.76.1.3.3">...</name>
'     <name type="oid" oid="2.16.76.1.3.7">...</name>
'     <rfc822Name>...</rfc822Name>
' </SubjectAltName>

' The XML can be parsed like this:

' For versions of Chilkat < 10.0.0, use CreateObject("Chilkat_9_5_0.Xml")
set xml = CreateObject("Chilkat.Xml")

success = xml.LoadXml(subjectAltNameXml)

i = 0
count_i = xml.NumChildrenHavingTag("name")
Do While i < count_i
    xml.I = i
    oid = xml.ChilkatPath("name[i]|(oid)")
    name = xml.GetChildContent("name[i]")
    i = i + 1
Loop
rfc822Name = xml.GetChildContent("rfc822Name")

outFile.Close